Limonium plant named ‘Esm Sol’

ABSTRACT

A new and distinct cultivar of  Limonium  plant named ‘Esm Sol’, characterized by its erect, long and strong flowering stems; vigorous growth habit; freely flowering habit; small yellow and green-colored flowers; and good postproduction longevity.

Botanical designation: Limonium sinense.

Cultivar denomination: ‘Esm Sol’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Limonium plant, botanically known as Limonium sinense, grown commercially as a cut flower, and hereinafter referred to by the name ‘Esm Sol’.

The new Limonium is a product of a planned breeding program conducted by the Inventor in El Quinche, Pichincha, Ecuador. The objective of the breeding program is to create new freely flowering Limonium cultivars with long and straight flowering stems.

The new Limonium originated from a open-pollination in El Quinche, Pichincha, Ecuador in August, 2000 of a proprietary selection of Limonium sinense identified as Line 8, not patented, as the female, or seed, parent with an unknown selection of Limonium sinense. The cultivar Esm Sol was discovered and selected by the Inventor as a flowering plant from within the progeny of the stated open-pollination in a controlled environment in El Quinche, Pichincha, Ecuador.

Asexual reproduction of the new Limonium by cuttings in a controlled environment in El Quinche, Pichincha, Ecuador since August, 2001, has shown that the unique features of this new Limonium are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

The cultivar Esm Sol has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Esm Sol’. These characteristics in combination distinguish ‘Esm Sol’ as a new and distinct cultivar of Limonium:

-   -   1. Erect, long and strong flowering stems.     -   2. Vigorous growth habit.     -   3. Freely flowering habit.     -   4. Small yellow and green-colored flowers.     -   5. Good postproduction longevity.

In side-by-side comparisons conducted in El Quinche, Pichincha, Ecuador, plants of the new Limonium differed from plants of the female parent selection in the following characteristics:

-   -   1. Plants of the new Limonium were more vigorous than plants of         the female parent selection.     -   2. Inflorescence structure of the new Limonium was not as open         and loose as inflorescence structure of plants of the female         parent selection.

Plants of the new Limonium can be compared to plants of the Limonium cultivar Yellow Diamond, not patented. In side-by-side comparisons conducted in El Quinche, Pichincha, Ecuador, plants of the new Limonium differed from plants of the cultivar Yellow Diamond in the following characteristics:

-   -   1. Plants of the new Limonium were more vigorous, had stronger         flowering stems and produced more flowering stems than plants of         the cultivar Yellow Diamond.     -   2. Plants of the new Limonium had larger leaves than plants of         the cultivar Yellow Diamond.     -   3. Inflorescence structure of the new Limonium was not as open         and loose as inflorescence structure of plants of the cultivar         Yellow Diamond.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Limonium. These photographs show the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Limonium. Clockwise from the upper leaf photograph: side perspective view of a typical inflorescence; close-up view of a typical inflorescence; close-up view of upper and lower surfaces of typical leaves; and close-up view of a typical flowering stem of ‘Esm Sol’.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used. The following observations and measurements describe plants grown during the winter in El Quinche, Pichincha, Ecuador in ground beds in a polyethylene-covered greenhouse and under conditions and practices which approximate those generally used in commercial cut Limonium production. During the production of the plants, day temperatures ranged from 11° C. to 28° C., night temperatures ranged from 5° C. to 11° C. and light levels ranged from 1,000 to 1,150 foot-candles. Plants were pinched. Measurements and numerical values represent averages for typical five-month old flowering plants.

-   Botanical classification: Limonium sinense cultivar Esm Sol. -   Commercial classification: Cut flower Limonium. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of Limonium             sinense identified as Line 8, not patented.         -   Male, or pollen, parent.—Unknown selection of Limonium             sinense, not patented. -   Propagation:     -   -   Type.—By cuttings.         -   Time to initiate roots.—About 15 to 20 days at 17° C. to 25°             C.         -   Time to produce a rooted cutting.—About seven to nine weeks             at 17° C. to 25° C.         -   Root description.—Moderately thick, fibrous; 163C in color. -   Plant description:     -   -   Appearance.—Perennial subshrub grown as a cut flower. Erect             and strong flowering stems; inverted triangle form. Leaves             basal. Freely flowering habit; numerous flowers arranged in             symmetrical and moderately dense compound panicles. Vigorous             growth habit.         -   Branching habit.—After pinching, about 31 flowering stems             develop per year.         -   Plant height.—About 100 cm.         -   Plant diameter or spread.—About 62 cm.         -   Flowering stems.—Length: About 96 cm. Diameter: About 7 mm.             Internode length: About 4.2 cm. Strength: Strong. Texture:             Immature, pubescent; mature, glabrescent. Color: 137A. -   Foliage description:     -   -   Arrangement.—Alternate, simple; sessile.         -   Length.—About 28.7 cm.         -   Width.—About 5 cm.         -   Shape.—Narrowly obovate.         -   Apex.—Acute.         -   Base.—Attenuate.         -   Margin.—Crenate; undulate.         -   Texture, upper and lower surfaces.—Smooth, glabrous; waxy.         -   Venation pattern.—Pinnate.         -   Color.—Developing foliage, upper surface: 143A. Developing             foliage, lower surface: 146B. Fully expanded foliage, upper             surface: 137A to 147A; venation, 145D. Fully expanded             foliage, lower surface: 147B; venation, 138D. -   Flower description:     -   -   Flower arrangement and habit.—Compound cymes with numerous             flowers; flowers actinomorphic and symmetrical. Very freely             flowering, about 4,300 flowers per inflorescence. Flowers             face mostly upright.         -   Flowering response.—In Ecuador, plants flower year round.             Plants begin flowering about 16 weeks after planting.         -   Post-production longevity.—As a cut flower, flowers last for             about two weeks. Corolla self-cleaning; calyx persistent.         -   Fragrance.—None detected.         -   Inflorescence height.—About 96 cm.         -   Inflorescence diameter.—About 46 cm.         -   Flower diameter.—About 5 mm.         -   Flower depth (height).—About 8 mm.         -   Flower buds.—Length: About 7 mm. Diameter: About 2 mm.             Shape: Fusiform. Color: Apex: 2B. Mid-section: 46A. Base:             144B.         -   Corolla.—Petals per flower: Five. Petal length: About 8 mm.             Petal width: About 2 mm. Petal shape: Triangular. Petal             apex: Emarginate. Petal margin: Entire. Petal texture, upper             and lower surfaces: Smooth, glabrous; membraneous. Petal             color: When opening, upper surface: 6B; towards the base,             close to 155D. When opening, lower surface: 7A; towards the             base, close to 155D. Fully opened, upper and lower surfaces:             6A; towards the base, close to 155D.         -   Calyx.—Sepals per flower: Five. Length: About 7 mm. Width:             About 5 mm. Shape: Salverform. Sepal apex: Acute. Sepal             margin: Entire. Sepal texture, upper and lower surfaces:             Smooth, glabrous. Sepal color: When opening, upper surface:             1B; throat, 145A. When opening, lower surface: 1B; tube,             N144D. Fully opened, upper and lower surfaces: 2B; throat,             145B.         -   Pedicels.—Length: About 9 cm. Diameter: About 7 mm.             Strength: Strong. Angle: About 18° from vertical. Texture:             Smooth, glabrous. Color: 137A.         -   Reproductive organs.—Stamens: Quantity per flower: Five.             Anther shape: Reniform. Anther length: Less than 1 mm.             Anther color: 3A. Pollen amount: Abundant. Pollen color: 3A.             Pistils: Quantity per flower: One. Pistil length: About             7 mm. Style length: About 5 mm. Style color: Close to 155D.             Stigma shape: Filiform. Stigma color: Close to 1C. Ovary             color: 3C. Seeds: Seed development has not been observed. -   Disease/pest resistance: Plants of the new Limonium have been     observed to be resistant to Peronospora. Plants have not been shown     to be resistant to pests and other pathogens common to Limonium. -   Temperature tolerance: Plants of the new Limonium have been observed     to tolerate temperatures ranging from about 5° C. to about 30° C. 

1. A new and distinct Limonium plant named ‘Esm Sol’ as illustrated and described. 